TIME follows a team of U.S. Army weapons hunters as
they race to separate the insurgents from their arsenals

The car bombs that go off in Baghdad are manufactured in the relative quiet of an arc of Sunni tribal lands around the capital. That is the true heartland of the resistance, where it draws on massive weapons depots secreted in river valleys and deserts. The nationalist fighters who control the area supply Abu Mousab al-Zarqawi's networks with the ammo they use for their deadly operations, according to U.S. military intelligence. Even as more attacks took place last week in the run-up to the election--including mortar rounds on the U.S. embassy that killed two Americans--the Iraqi government announced the capture of...